NPPES file of Aug 9, 2026

Frederick George Barker, MD

Neurological Surgery Physician · Boston, MA

Frederick George Barker, MD is a neurological surgery physician with a practice address in Boston, Massachusetts, and NPI 1649244344, issued on Feb 17, 2006. Check the license (Massachusetts 75156, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649244344
Name
Frederick George Barker
Credential
MD
Primary taxonomy
Neurological Surgery Physician 207T00000X
License number
75156 MA
Self-reported in NPPES; status is on the state search
Practice location
55 Fruit Street, Boston, MA 02114
Phone
(617) 724-8772
Enumerated
Feb 17, 2006
Record last updated
Nov 29, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(617) 724-8769
Medicaid ID
3085601 MA
Medicare enrollment
Enrolled (PECOS I20040720001035); accepts Medicare assignment
Medical or professional school
Harvard Medical School, 1985
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 55 Fruit Street

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Stephen Abraham, M.D.Specialist1487743316
  2. Nadia Ahmad, M.D.Internal Medicine Physician1912198037
  3. Fayaz Ahmed, MDStudent in an Organized Health Care Education/Training Program1528245024
  4. John Albin, MD, PHDInfectious Disease Physician1528472644
  5. Mary Amatangelo, NPAcute Care Nurse Practitioner1114191442
  6. Tian You An, M.D.Anesthesiology Physician1801145792

Verify Frederick George Barker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 75156
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Massachusetts General Physicians Organization IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Frederick George Barker among 236 neurological surgery physician records in Massachusetts

Frederick George Barker, MD is one of 236 neurological surgery physician records with a practice address in Massachusetts. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 58% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated1985 · median 2001 among the 154 with a school on file
  • Record last updated2012 · 69% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurological Surgery Physician providers in Massachusetts

There are 236 neurological surgery physician records in Massachusetts.

The 8 neurological surgery physician records with the nearest ZIP codes

  1. Alireza Atri, MD PHDBoston, MA 021141326038506
  2. Lawrence Borges, MDBoston, MA 021141851379010
  3. Daniel Cahill, MD PHDBoston, MA 021141336113679
  4. Paul Chapman, MDBoston, MA 021141780674960
  5. Jean Valery Coumans, MDBoston, MA 021141467436154
  6. William Curry, MDBoston, MA 021141730163395
  7. Emad Eskandar, MDBoston, MA 021141972576239
  8. David Margolin, MD PHDBoston, MA 021141952391047

Common questions

What is Frederick George Barker, MD's NPI number?

Frederick George Barker, MD's National Provider Identifier (NPI) is 1649244344, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Frederick George Barker, MD located?

The NPPES record lists a practice address at 55 Fruit Street, Boston, MA, 02114. Phone: (617) 724-8772. Providers update this record themselves, so call before visiting.

How can I verify Frederick George Barker, MD's license?

NPPES lists Massachusetts license number 75156, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.